Battery connection voltage
The rated input voltage for which the car inverter is designed. This indicator must correspond to the rated voltage of the battery used with the device:
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12 V. The most popular battery voltage used in modern transport: used in the vast majority of passenger cars, also found in motorcycles and trucks.
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24 V. This option is typical for heavy equipment - buses, trucks, tractors, etc.
Note that the actual battery voltage during operation can vary within a few volts - mainly due to changes in the charge level. But autoinverters are created taking this feature into account and can operate normally in a certain voltage range. Therefore, in the general characteristics it is quite enough to indicate the nominal voltage of the battery; the specific operating range is often given only in detailed documentation.
Efficiency
Efficiency of the autoinverter.
Efficiency is the ratio (in percent) between the amount of energy that the device delivers to the load and the amount that it consumes from the vehicle's on-board network. Accordingly, the higher this indicator, the more efficient the work and the less loss during conversion. In fact, this means that, other things being equal, a device with a higher efficiency will allow the load to run longer on battery power; this is especially important at high power consumption.
In modern auto inverters, efficiency values of 80 – 85% are considered average, 90% or more are good.
